メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.416366506282 43.7345977832501, 142.41406901894 43.7347124232323, 142.414066802299 43.7347354744442, 142.414103826503 43.7351971298607, 142.41351079915 43.7352221749762, 142.413436683694 43.7344821709502, 142.413980156417 43.7341193761932, 142.414615961722 43.7337042356385, 142.414937370889 43.7335752157112, 142.416002992657 43.7332884762, 142.416174607629 43.7336029162087, 142.416299450281 43.7338482958229, 142.416325136831 43.7341353959274, 142.416366506282 43.7345977832501)) ^^http://www.opengis.net/ont/geosparql#wktLiteral